HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesBull goby Bull goby (Redigobius balteatops) Scientific name: Redigobius balteatops Smith, 1959 The Bull goby (Redigobius balteatops) is a brackish-water fish of the family Gobiidae. Native range: Western Indian Ocean, apparently only known from type material (type locality: Inhaca Islands, Mozambique); record from Madagascar needs confirmation. BiologyDorsal spines (total): 7; Dorsal soft rays (total): 7; Anal spines: 1; Anal soft rays: 6. 4 dark spots along anal base and lower caudal peduncle; 2 dark spots at caudal base.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameRedigobius balteatopsFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length3.8EnvironmentBrackish; demersalClimateTropicalDistributionWestern Indian Ocean: apparently only known from type material (type locality: Inhaca Islands, Mozambique); record from Madagascar needs confirmation.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026